Finding the Third Proportional to 67,623.50 and 144,628

Step by Step Solution

1. Step 1: Write the proportion equation
   67,623.50 : 144,628 = 144,628 : x
2. Step 2: Convert to fraction form
   67,623.50/144,628 = 144,628/x
3. Step 3: Cross multiply
   67,623.50x = 144,628 × 144,628
4. Step 4: Simplify right side
   67,623.50x = 20,917,258,384
5. Step 5: Solve for x
   x = 20,917,258,384/67,623.50
6. Step 6: Final answer
   x = 309,319.37